Clarifying and filtering apparatus.



No. 761,187. PATENTED MAY 31, 1904. 1). L. WATSON.

GLARIFYING AND FILTERING APPARATUS. APPLICATION FILED 0015.2.- 1903.

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No. 761,187. PATENTED MAY 31., 1904.

1). L. WATSON.

GLARIFYING AND FILTERING APPARATUS.

APPLICATION FIL ED OUT. 2. 1903- I N0 MODEL. v 2 SHEETS-SHEET 2- J'L' ME) same.

Patented. May 31, 1904.

PATENT OFFICE.

DAVID L. wATsoN, OF NEW ORLEANS, LOUISIANA.

QLARIFYING AND FILZTERING APPARATUS.

SPECIFICATION forming part of Letters Patent No, 761,187, dated May 31, 1904.

Application filed October 2, 1903.

To all whom may concern/.1

zen of the United States, residing at 'New Orleans, in the parishof Orleans and State of Louisiana, have invented new and useful Improvements in Clarifying and Filtering Apparatus, of which the following is a specification. g I

My invention pertains to water-filters; and it consists in the novel and advantageous water clarifier and filter hereinafter described, and particularly pointed in the claims appended; i I In the accompanying drawings, forming part of this specification, Figure 1 is a broken view, partly in vertical section and partly in elevation, of the apparatus constitutingone embodiment of my invention. Fig. 2 is a planof the apparatuswith the covers of the casing and the several compartments therein removed. Fig. 3 is a broken plan view of one of the electrolyzers ofthe apparatus removed. Fig. 4 is a transverse section of the Fig. 5 is a plan view of one compartment of the apparatus, illustrating another and preferred type of electrolyzer therein. Fig. 6 is a verticalsection of the same. Fig. 7 is an elevation of one of the electrodes of the preferred electrolyzer removed, and Fig. 8 is an elevation illustrating the disposition of the electrodes of theelectrolyzer with respect to the partition thereof.

Referring by letter to said drawings, and more particularly to Figs. 1 to4 thereof, A is the casing of my improved apparatus, which is preferably of sheet metal and is provided with aremovable cover (a and adraw-olf cock 5, and B is a false bottom arranged in the casing and serving, in conjunction with the bottom thereof, to form a chamber 0, designed for the reception of the foreign substances removed fromthe water. The said chamber is provided,'as shown in Fig, l, with a valved pipe 0, throughwhicli it may be readily discharged of. the collected foreign substance when desired.

D, E, F, and G are compartments, preferably cylindrical, arranged in the casing A and having removable covers 0?. The compartments D, E, and F have bottoms e, which Serial no. 175,474.. on mgdel :are pitched or inclined downwardly toward Beit known thatI, DAVID L. WATSON, a-citi the centers thereof and are connected at such points, through the medium of. pipes f, with the chamber C. This is in order to enable them to'discharge sediment into said chamber. The compartment D is also provided, as best shown in Fig. 1, with a diametrical partitiong,whicl1 extends from its upper end to a point adjacent toits bottom 6 for a purpose presently described. h

H H are electrolyz ers arranged on suitable supports in the compartment -D at opposite sides of the partition g and dividing said com: partment into upper and lower Iportions; These electrolyzers respectively comprise a horizontal frame it, of marble orother suitable material, having grooves 2 in theinner sides of its side bars; plates of platinum o th a suitable material, seated in the said grooves and each having a projection k at one end; a conductor Z, connected to. the projectionsfl of the alternate plates anddesigned to; be eone nected with the positive ,pole of an -electro generator, (not showng anda conduetonm, connected to the projections of the other plates and designed to .loeconnected with the negative pole of the eleetrogenerator,

I is a water-supply pipe leading frprn a source of supplylto the compartment D; at a point above the,electrolyzers; J a .port or pipe connecting, the compartments D and E at a pointabove the electroly-zers;- K, a filteringbody, preferably composed of charcoal, sand, and quartz, arranged in a holder L in the compartment E ata point above the connection J; M, a port or pipe connecting the compart ments E and F at a point above the filteringbody K; N, a filtering-body, preferably of stone, arranged in a holder Pin the compart ment F at a pointabove the connection M,

one of the electrolyzers H, to the direct action of a current of electricity, which coagulates the foreign substance and clarifies the water. The foreign substance settles to the bottom of the compartment D, while the water passes upwardly in said compartment at the opposite side of the partition g and through the other electrolyzer H, through the medium of which it is again subjected to the direct action of the current of electricity for the purpose stated. From the compartment D the Water passes through pipe J into the compartment E. In-said' compartment E the water passes upwardly through the filtering-body K, while the foreign substance settles to the bottom of the compartment; The water .passes from the compartment E at a point said body and settle to the bottom of the corn- T trodes will be thoroughly treated with a curpartment.

From the foregoing it follows that when the water reaches the casing A it will be thoroughly clarified and filtered; also, that the foreign substance separated from the water will settle to the bottom of the compartments D, E, and F and immediately pass from thence into the chamber C. This latter is materially advantageous, since it reduces to a minimum the liability of deposited foreign substance being againtaken up by the water during the passage of the same through the compartments D, E, and F.

The compartment G is designed to contain ice or any other agent suitable for cooling the filtered water in the casing A.

The electrolyzer H (shown in Figs. 5 to 8 of the drawings) is the one which I prefer to employ. This electrolyzer H is arranged in the compartmentD below a partition 9 which depends from the top of the compartment, and it comprises a frame h, of marble or other suitable material, plates or electrodes 1', of platinum or othersuitable material, and insulating-slabs f. The frame h is made up of a vertical partition 0, which is connected to and depends. from the partition g and is provided in its opposite sides with vertical grooves 7, intermediate walls b of less height than the wallp, arranged parallel to said wall 19 and having vertical transverse slots and also having vertical grooves in their inner sides above and below and in communication with the said slots, side walls 8 of a less height than the walls if, arranged parallel to said walls b and side walls t, disposed at right angles to the walls 12, if, and s and connecting the same. The plates or electrodes j are arranged between the Walls 11 and k of the frame, with their vertical edges in the grooves of said walls, and are provided with projections -]c, which extend through the slots or openings in the walls 702 into the chambers k formed between the walls if and the walls 8. The insulating-slabs are disposed above and below the electrodes and between the walls 19 and k of the frame and in the grooves of the said walls. The projections of the alternate electrodes of the two series shown are connected to conductors Z, which rest in the chambers 76' and are designed to be electrically connected with the positive pole of an electrogenerator, '(not shown,) and the projections 70 of the other electrodes of the two series are connected to conductors m, alsodisposed in the chambers 71 and designed to be connected with the negative pole of the electrogenerator. The electrolyzer as a whole is hermetically sealed with wax or other suitable material, and from this it follows that in passing through the electrolyzer liquid must take between opposing faces of the electrodes. It will also be observed that the electrodes are insulated on all sides, and in consequence water in passing between the faces of the elecrent of electric fluid. It will further be noticed that while the water passes between the faces of the electrodes it cannotreach the conductors Z and m. l

' When the electrolyzer H is embraced in my novel apparatus, the water which enters the compartment D through pipeI passes down between the electrodes j at one side of the partition 12 and then up between the electrodes at the opposite side of the partition and is in consequence thoroughly treated with electricity. ,As a result of this electrical treatment the foreign substance in the water is coagulated and settles to the bottom of the compartments D, E, and F, Figs. land 2, so that when the wateris discharged into the casing A, as before described, it is thoroughly clarified and purified,

I have entered into a detailed description of the construction and relative arrangement of the parts embraced in the present and preferred embodiments of my invention in order to impart a full, clear, and exact understanding of the same. I do not desire, however, to be understood as confining myself to such specific construction and relative arrangement of parts, as such changes or modifications may be made in practice as fairly fall within the scope of my invention as claimed.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. A water clarifying and filtering apparatus, comprising a compartment having abottom, inclined downwardly to its center, an electrolyzer arranged in said compartment, a water-supply pipe connected with the compartment, a second compartment connected with the first-mentioned compartment, at the opposite side of the electrolyzer with reference to the water-supply pipe, and having adischarge,

ber arranged below and connected to the centers of the bottoms of the compartments, and having a valved discharge.

2. A water clarifying and filtering apparatus, comprising a compartment, an upright partition arranged in said compartment and extending from the upper end to a point adjacent to the bottom thereof, electrodes arranged in said compartment, at opposite sides of the partition, a water-supply pipe connected with the compartment, above one set of electrodes, asecond compartment connected with the first-mentioned compartment, at a point above the other set of electrodes, and having a discharge, and a filtering-body arranged in the second-mentioned compartment between the water inlet and discharge thereof.

3. A Water clarifying and filtering apparatus, comprising a compartment, an upright partition arranged in said compartment and extending from the upper end to a point adjacent to the bottom thereof, electrodes arranged in said compartment, at opposite sides of the partition, a water-supply pipe connected with the compartment, above orie set of electrodes, a second compartment connected with the first-mentioned compartment, at a point above the other set of electrodes, and

having a discharge; a filtering-body, of charcoal, sand and quartz, arranged in the secondmentioned compartment between the water inlet and discharge thereof, a third compart-' ed to receive filtered Water from the thirdmentioned compartment, and a chamber, at the bottom of the casing, connected with the bottoms of the several compartments, and having a valved discharge.

4.. In a filtering and clarifying apparatus, the combination of a compartment'having an inlet and an outlet, and an electrolyzer arranged in the compartment, and comprising a Vertical partition disposed between the inlet and the outlet, and sets of insulated electrodes disposed at opposite sides of the partition.

5. In a filtering and clarifying apparatus,

the combination of a compartment having an ranged in the compartment, and comprising a frame of insulating material having a vertical partition disposed between the inlet and the outlet,and also having chambers at opposite sides of the partition, slabs of insulating material arranged in the frame between the partition and the chambers and having projections extending into the latter, slabs of insulating material'arranged in the frame above 7 and below the electrodes, and conductors arranged in the chambers and connected to the projections of the electrodes.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

DAVID L. WATSON. Witnesses:

H. H. MALoNnY, J. V10. LEcLnRE. 

